Antipsychotics are the drugs prescribed to treat psychotic disorders; however, patients often
fail to adhere to their treatment, and this has a severe negative effect on prognosis in these …

Objectives: Cannabis use is prevalent among people with first episode psychosis and the
epidemiology of its use in early psychosis is unclear. We performed a meta-analysis of …

Background Cannabis use following the onset of first-episode psychosis has been linked to
both increased risk of relapse and non-adherence with antipsychotic medication. Whether …

Objective To investigate whether cannabis use is associated with increased risk of relapse,
as indexed by number of hospital admissions, and whether antipsychotic treatment failure …

Objective: No evidence-based intervention effectively reduces cannabis use in young adults
with psychosis (YAP). To generate hypotheses about why, a scoping review was conducted …

Objective: To conduct a comprehensive review of current evidence on factors for
nonadherence to treatment in individuals with first-episode psychosis (FEP). Methods …

A major factor associated with poor prognostic outcome after a first psychotic break is
cannabis misuse, which is prevalent in schizophrenia and particularly common in …

BackgroundSubstance use may increase the risk of non-adherence to antipsychotics,
resulting in negative outcomes in patients with psychosis. MethodWe aimed to quantitatively …

BackgroundProspective studies on the relationship between course of cannabis use and
clinical outcome in patients with non-affective psychotic disorders are inconclusive. The …

Background Childhood trauma (CT) and cannabis use are both environmental and modifier
risk factors for schizophrenia. However, little is known about how they interact in …